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 Post subject: Heavy surface rust on boat anchor chassis
PostPosted: May Mon 03, 2021 5:04 pm 
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Looking at a deal on a desirable boat anchor.

Everything seems to work o.k., but I did notice what looks like a good bit of corrosion on the chassis, transformer case, etc..

A red flag, or just a clean up job?

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Mon 03, 2021 5:15 pm 
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Location: S. Dartmouth MA 02748-1225 USA
Why get a rust bucket? There are many more clean radios out there. Wait. One will come along.

Radios are "like" other antiques, condition, condition, condition... chas

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Mon 03, 2021 5:34 pm 
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Chas wrote:
Why get a rust bucket? There are many more clean radios out there. Wait. One will come along.

Radios are "like" other antiques, condition, condition, condition... chas

Thanks, Chas!

For a bargain on a really nice set, I don't mind doing some metal cleaning.

Many moons ago, when I worked as a chrome plater, it became second nature.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Mon 03, 2021 7:14 pm 
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With the "condition" issue having been said, if the rust is only on the transformers and/or their housings I wouldn't worry about it. If there is rust around/under some of the various screws and mounting hardware/rivets on the chassis, That could well be a red flag. The issue is, is it only in a couple places, or most places, or everywhere. Everywhere is out, most places maybe an 25-30% of what the seller wants, a couple/few maybe 70% of what he's looking for. Those are max percentages, taking into consideration the over all condition including, Dials, Meters, knobs, cabinet dents \/dings/paint etc..

YMMV but thats what I'd do. Keep in mind I've done a lot of old restores, and can handle most any problem found, and its just a "Do I want to mess with it" kind of decision.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Mon 03, 2021 8:50 pm 
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Mikeinkcmo wrote:
With the "condition" issue having been said, if the rust is only on the transformers and/or their housings I wouldn't worry about it. If there is rust around/under some of the various screws and mounting hardware/rivets on the chassis, That could well be a red flag. The issue is, is it only in a couple places, or most places, or everywhere. Everywhere is out, most places maybe an 25-30% of what the seller wants, a couple/few maybe 70% of what he's looking for. Those are max percentages, taking into consideration the over all condition including, Dials, Meters, knobs, cabinet dents \/dings/paint etc..

YMMV but thats what I'd do. Keep in mind I've done a lot of old restores, and can handle most any problem found, and its just a "Do I want to mess with it" kind of decision.


Thanks, Mike!

This really doesn't look too awful, the radio is a classic and in the top 10 of desirable boat anchors.

Your assessment sounds like a good one.

I probably should have titled the thread "looking for hints on cleaning rusty chassis."

The rig is a Hallicrafters SX-100, I paid $250 + $40 shipping, the seller knocked $100 off the original price and I couldn't resist.

It lights up, gets movement in the meter which apparently works, doubtless needs gone over. Tuner and bandspread move freely.


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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Mon 03, 2021 10:03 pm 
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I myself would not pay 250 for any kind of rusted-up Hallicrafters, and the seller should have taken into account the intensive labor for a restoration to reasonable condition. But if you like the challenge, and have the time and patience, have fun with that. Some people on here have taken rusty chassis BC radios, stripped them bare and reworked them. That would be conceivable on a radio that is simpler than the Halli. However rusty chassis would red flag me for damage well beyond the chassis itself, like tuning caps, tube sockets, anything metal inside the radio.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 12:42 am 
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wazz wrote:
I myself would not pay 250 for any kind of rusted-up Hallicrafters, and the seller should have taken into account the intensive labor for a restoration to reasonable condition. But if you like the challenge, and have the time and patience, have fun with that. Some people on here have taken rusty chassis BC radios, stripped them bare and reworked them. That would be conceivable on a radio that is simpler than the Halli. However rusty chassis would red flag me for damage well beyond the chassis itself, like tuning caps, tube sockets, anything metal inside the radio.


Thanks, wazz!

I take it you're not a Hallicrafters fan? :lol:

If I remember my radio history, for military radio operators during WW2 in the Pacific jungles, and later in Vietnam, rust was something to be contended with as a part of the environment.

As with rifles, the reality of life in the danger zone made constant cleaning and lubrication an impossibility.

So, when time presented itself, rust removal was performed as best as possible under the circumstances.

When I was a plater, we occasionally got rusted vintage items to plate.

The item would soak overnight in alkaline cleaning bath with reverse current going through it, at a temp of 180 degrees. Then, a scouring pad (non metallic) and brass brush were used.

Rinse in water, then acid - water solution to neutralize, then water, then copper plate, nickel plate, and chrome.

I am rust's worst nightmare.


https://youtu.be/7m9ihtr10-g


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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 2:30 pm 
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Used to do the alkaline/DC bath with old cast iron wood planes then neutralize and paint them with Asphaltum as done at the Stanley tool factory.

Image

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 3:51 pm 
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Not that I don't like Hallicrafters at all. I have an S 41B here that I overhauled. But only because it cost like 15$. I am just allergic to paying a high price for a rusty neglected radio that is not rare, or something. But that is me. Some people have a greater tolerance for diving into challenges like that. I am sure you will get it going and playing nicely. However unless you can clean it up really nice, your resale will be limited as alot of people are a bit finicky. But the outsides look pretty good. No headaches with the external cosmetics I see. Regardless of costs, if you get enjoyment and satisfaction out of resurrecting that radio, it is an accomplishment you can take pride in. Right now I am getting ready to move, and boatanchors are a headache on top of my backache.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 4:33 pm 
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Location: York PA.
>>The rig is a Hallicrafters SX-100, I paid $250 + $40 shipping, the seller knocked $100 off the original price and I couldn't resist.

Hi Dalton

The SX-100 is not that rare of a receiver. In the condition you show, I'd have walked away from it without a second thought.

Prices on all boat anchors are falling; be patient. Hamfests are starting back up; be patient.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 5:45 pm 
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k3msb wrote:
>>The rig is a Hallicrafters SX-100, I paid $250 + $40 shipping, the seller knocked $100 off the original price and I couldn't resist.

Hi Dalton

The SX-100 is not that rare of a receiver. In the condition you show, I'd have walked away from it without a second thought.

Prices on all boat anchors are falling; be patient. Hamfests are starting back up; be patient.


Thank you!

We learn by doing.

If it works, I came out ahead.

If not, I have another parts/project radio.


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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 5:49 pm 
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Mikeinkcmo wrote:
Used to do the alkaline/DC bath with old cast iron wood planes then neutralize and paint them with Asphaltum as done at the Stanley tool factory.

Image


Very nice!!!!

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 6:18 pm 
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Dalton wrote:

Thank you!

We learn by doing.


Don't feel bad; you've done nothing the rest of have haven't done more times than we'll admit..... :shock:

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 6:25 pm 
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Mikeinkcmo wrote:
Used to do the alkaline/DC bath with old cast iron wood planes then neutralize and paint them with Asphaltum as done at the Stanley tool factory.

Image


What exactly is Asphaltum?

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 8:47 pm 
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k3msb wrote:
Dalton wrote:

Thank you!

We learn by doing.


Don't feel bad; you've done nothing the rest of have haven't done more times than we'll admit..... :shock:


Thank you, Mark!

I will report when it arrives! :D

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 8:51 pm 
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processhead wrote:
Mikeinkcmo wrote:
Used to do the alkaline/DC bath with old cast iron wood planes then neutralize and paint them with Asphaltum as done at the Stanley tool factory.

Image


What exactly is Asphaltum?


Closely related to Myfaultum. :lol:


But seriously, having worked in the field, it sounds like a solid coating metal preservative.

We had something called Henderson solid lubricant, that was both an anti rust preservative, and eliminated the need for lubrication in certain applications.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Tue 04, 2021 11:47 pm 
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I got some of it YEARS ago, as a powder and mixed it with I don't remember what (paint thinner I guess), and painted the planes with a brush. the stuff was very thick with viscosity much thicker than Honey. Then eventually baked it at 160 degrees or so. Still have about a third of it left.

I found some info HERE, AND HERE.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Wed 05, 2021 1:24 am 
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The military used Cosmoline for everything that might rust. It was removed with kerosene or gasoline.

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Wed 05, 2021 2:23 am 
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Mikeinkcmo wrote:
I got some of it YEARS ago, as a powder and mixed it with I don't remember what (paint thinner I guess), and painted the planes with a brush. the stuff was very thick with viscosity much thicker than Honey. Then eventually baked it at 160 degrees or so. Still have about a third of it left.

I found some info HERE, AND HERE.


Thanks for clarifying, Mike!

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 Post subject: Re: Heavy surface rust on boat anchor chassis
PostPosted: May Wed 05, 2021 2:27 am 
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Radiosmoker wrote:
The military used Cosmoline for everything that might rust. It was removed with kerosene or gasoline.


We got tons of stuff coated with Cosmoline.

We unpacked the parts out of wooden crates, put them in 10 gallon steel sieve buckets, and used an overhead crane to rinse in 55 gallon drums of tricholethelyne.

I was in my 20's and didn't know any better. :D

This probably explains my posts, so be nice to me.

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